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| Mirrors > Home > MPE Home > Th. List > vsnid | Structured version Visualization version GIF version | ||
| Description: A setvar variable is a member of its singleton. (Contributed by David A. Wheeler, 8-Dec-2018.) |
| Ref | Expression |
|---|---|
| vsnid | ⊢ 𝑥 ∈ {𝑥} |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | vex 3443 | . 2 ⊢ 𝑥 ∈ V | |
| 2 | 1 | snid 4618 | 1 ⊢ 𝑥 ∈ {𝑥} |
| Colors of variables: wff setvar class |
| Syntax hints: ∈ wcel 2114 {csn 4579 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1912 ax-6 1969 ax-7 2010 ax-8 2116 ax-9 2124 ax-ext 2707 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-tru 1545 df-ex 1782 df-sb 2069 df-clab 2714 df-cleq 2727 df-clel 2810 df-v 3441 df-sn 4580 |
| This theorem is referenced by: exsnrex 4636 rext 5395 unipw 5397 xpdifid 6125 opabiota 6915 fnressn 7103 fressnfv 7105 snnex 7703 frrlem12 8239 frrlem14 8241 mapsnd 8826 findcard2d 9093 ac6sfi 9186 iunfi 9245 elirrvOLD 9505 kmlem2 10064 fin1a2lem10 10321 hsmexlem4 10341 iunfo 10451 modfsummodslem1 15717 lcmfunsnlem2lem1 16567 coprmprod 16590 coprmproddvdslem 16591 c0snmgmhm 20400 lbsextlem4 21118 frlmlbs 21754 coe1fzgsumdlem 22249 evl1gsumdlem 22302 maducoeval2 22586 dishaus 23328 dis2ndc 23406 dislly 23443 dissnlocfin 23475 comppfsc 23478 txdis 23578 txdis1cn 23581 txkgen 23598 isufil2 23854 alexsubALTlem4 23996 tmdgsum 24041 dscopn 24519 ovolfiniun 25460 volfiniun 25506 jensen 26957 uvtx01vtx 29451 cplgr1vlem 29483 unidifsnel 32590 gsumpart 33125 vieta 33715 extdg1id 33802 irngss 33823 esum2dlem 34228 bnj1498 35196 funen1cnv 35223 fineqvnttrclselem2 35257 wevgblacfn 35282 cvmlift2lem1 35475 funpartlem 36115 topdifinffinlem 37521 fvineqsneq 37586 pibt2 37591 finixpnum 37775 mbfresfi 37836 pclfinN 40195 sn-iotalem 42515 mzpcompact2lem 43030 dvmptfprod 46226 fourierdlem48 46435 sge0sup 46672 funressnvmo 47328 dfclnbgr6 48139 dfsclnbgr6 48141 termco 49763 termcarweu 49810 diag1f1o 49816 diag2f1o 49819 |
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